In relief of McCown, Petty went 1-for-1 throwing the ball, completing passes to fullback Lawrence Thomas and tight end Neal Sterling, although the Sterling reception was called back due to an illegal formation.

McCown returned three plays later and threw an interception to Broncos safety Dorian Stewart on his first play.

Sunday has not been kind to McCown so far. He has been under constant duress all day, taking two sacks in the first quarter. He completed only 3-of-6 for 18 yards with a lost fumble and an interception.